Area Code 620-510 located in SUBLETTE, HASKELL, KS, more detail is as below. Place NPA (Numbering Plan Area) : 620 NXX (Local Number Prefix) : 510 City : SUBLETTE County : HASKELL State : KS (Kansas) NXX Use Type : Landline NXX Intro Version : 2001-10-31 FIPS (Federal Information Processing Standards) : 20081 LATA (Local Access Transport Area) : 532 Rate Center : SUBLETTE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 67877 Other Information NPANXX : 620510 Switch CLLI (Common Language Location Identifier) : SBLTKSORRL0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : SUBLETTE Latitude : 37.4832 Longitude : -100.8396 ‹ previous : 620-509 next › : 620-513 Telephone Number List 620-510-0000 ~ 620-510-9999